分享並保存ImageView的圖像？

我有應用程序有兩個按鈕之一分享圖像和一個用於保存到內存保存按鈕工作完美，但共享按鈕不工作。分享並保存ImageView的圖像？

這裏是保存按鈕：

public void exportImage() { 
    if (this.mImageDrawableSet == false) { 
     this.mSaveImageOnDisplay = true; 
     return; 
    } 

    try { 
     final Bitmap bitmap = getImageBitmap(); 
     if (bitmap == null) { 
      Toast.makeText(getActivity(), "Something Went Wrong, Please Try Again!", Toast.LENGTH_SHORT).show(); 
      return; 
     } 

     final File dir = new File(Environment.getExternalStorageDirectory(), super.getResources().getString(R.string.config_external_storage_folder)); 

     if (!dir.exists()) { 
      dir.mkdirs(); 
     } 

     final File img = new File(dir, this.mNode.name + ".png"); 
     if (img.exists()) { 
      img.delete(); 
     } 

     final OutputStream outStream = new FileOutputStream(img); 
     bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream); 
     outStream.flush(); 
     outStream.close(); 

     super.getActivity().sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + dir.toString()))); 
     Toast.makeText(getActivity(), "Wallpaper Saved To, " + img.toString() + "!", Toast.LENGTH_LONG).show(); 
    } catch (Exception e) { 
     Log.e(TAG, "", e); 
     Toast.makeText(getActivity(), "Something Went Wrong, Please Try Again!", Toast.LENGTH_SHORT).show(); 
    } 
}

，這裏是共享部分：

public void shareimage() { 
    if (this.mImageDrawableSet == false) { 
     this.mApplyImageOnDisplay = true; 
     return; 
    } 

    try { 
     final Bitmap bitmap = getImageBitmap(); 
     if (bitmap == null) { 
      Toast.makeText(getActivity(), "Something Went Wrong, Please Try Again!", Toast.LENGTH_SHORT).show(); 
      return; 
     }  
     File root = Environment.getExternalStorageDirectory(); 
     File cachePath = new File(root.getAbsolutePath() + "/DCIM/Camera/image.jpg"); 

      cachePath.createNewFile(); 
      FileOutputStream ostream = new FileOutputStream(cachePath); 
      bitmap.compress(CompressFormat.JPEG, 100, ostream); 
      ostream.close(); 
      Intent share = new Intent(Intent.ACTION_SEND); 
      share.setType("image/*"); 
      share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(cachePath)); 
      startActivity(Intent.createChooser(share,"Share via")); 
     } catch (Exception e) { 
      e.printStackTrace(); 
      Toast.makeText(getActivity(), "Something Went Wrong, Please Try Again!", Toast.LENGTH_SHORT).show(); 
     } 
    }

，並沒有什麼顯示在logcat的，我只是得到一些錯誤敬酒。權限是正確的。

logcat的

02-15 16:10:50.527: W/System.err(2033):  at  android.support.v4.app.Watson.onMenuItemSelected(Watson.java:126) 
02-15 16:10:50.539: W/System.err(2033):  at com.actionbarsherlock.ActionBarSherlock.callbackOptionsItemSelected(ActionBarSherlock.java:604) 
02-15 16:10:50.539: W/System.err(2033):  at com.actionbarsherlock.internal.ActionBarSherlockNative.dispatchOptionsItemSelected(ActionBarSherlockNative.java:92) 
02-15 16:10:50.539: W/System.err(2033):  at com.actionbarsherlock.app.SherlockFragmentActivity.onMenuItemSelected(SherlockFragmentActivity.java:204) 
02-15 16:10:50.539: W/System.err(2033):  at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:986) 
02-15 16:10:50.539: W/System.err(2033):  at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:735) 
02-15 16:10:50.539: W/System.err(2033):  at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:152) 
02-15 16:10:50.539: W/System.err(2033):  at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:874) 
02-15 16:10:50.539: W/System.err(2033):  at com.android.internal.view.menu.ActionMenuView.invokeItem(ActionMenuView.java:547) 
02-15 16:10:50.539: W/System.err(2033):  at com.android.internal.view.menu.ActionMenuItemView.onClick(ActionMenuItemView.java:115) 
02-15 16:10:50.539: W/System.err(2033):  at android.view.View.performClick(View.java:4240) 
02-15 16:10:50.539: W/System.err(2033):  at android.view.View$PerformClick.run(View.java:17721) 
02-15 16:10:50.543: W/System.err(2033):  at android.os.Handler.handleCallback(Handler.java:730) 
02-15 16:10:50.543: W/System.err(2033):  at android.os.Handler.dispatchMessage(Handler.java:92) 
02-15 16:10:50.543: W/System.err(2033):  at android.os.Looper.loop(Looper.java:137) 
02-15 16:10:50.543: W/System.err(2033):  at android.app.ActivityThread.main(ActivityThread.java:5103) 
02-15 16:10:50.543: W/System.err(2033):  at java.lang.reflect.Method.invokeNative(Native Method) 
02-15 16:10:50.543: W/System.err(2033):  at java.lang.reflect.Method.invoke(Method.java:525) 
02-15 16:10:50.543: W/System.err(2033):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
02-15 16:10:50.551: W/System.err(2033):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
02-15 16:10:50.551: W/System.err(2033):  at dalvik.system.NativeStart.main(Native Method) 
02-15 16:10:50.551: W/System.err(2033): Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory) 
02-15 16:10:50.555: W/System.err(2033):  at libcore.io.Posix.open(Native Method) 
02-15 16:10:50.555: W/System.err(2033):  at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110) 
02-15 16:10:50.555: W/System.err(2033):  at java.io.File.createNewFile(File.java:941) 
02-15 16:10:50.559: W/System.err(2033):  ... 23 more

來源

2014-02-15 Soheyl

你能告訴我什麼消息應用程序顯示給你在吐司？ –

即時通訊「出錯了，請再試一次！」想給他們發號碼以找出哪一個正在顯示？ – Soheyl

是的，我想要。 –

我發現它的情況下，有人需要它最終shareimage（）

public void shareimage() { 
    if (this.mImageDrawableSet == false) { 
     this.mApplyImageOnDisplay = true; 
     return; 
    } 

    try { 
     final Bitmap bitmap = getImageBitmap(); 
     if (bitmap == null) { 
      Toast.makeText(getActivity(), "Something Went Wrong, Please Try Again!1", Toast.LENGTH_SHORT).show(); 
      return; 
     }  
     final File dir = new File(Environment.getExternalStorageDirectory(), super.getResources().getString(R.string.config_external_storage_folder)); 

     if (!dir.exists()) { 
      dir.mkdirs(); 
     } 

     final File img = new File(dir, this.mNode.name + ".png"); 
     if (img.exists()) { 
      img.delete(); 
     } 
     final OutputStream outStream = new FileOutputStream(img); 
     bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream); 
     outStream.flush(); 
     outStream.close(); 
      Intent share = new Intent(Intent.ACTION_SEND); 
      share.setType("image/*"); 
      share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(img)); 
      startActivity(Intent.createChooser(share,"Share via")); 
     } catch (Exception e) { 
      e.printStackTrace(); 
      Toast.makeText(getActivity(), "Something Went Wrong, Please Try Again!2", Toast.LENGTH_SHORT).show(); 
     } 
    }

來源

2014-02-15 16:25:16 Soheyl

您使用文件結尾「.png」和Bitmap.CompressFormat.JPEG。我認爲他們應該匹配。 – Meier

我正在胡亂猜測了，但看起來在這裏：

File root = Environment.getExternalStorageDirectory();

你已經忘了打電話給

root.mkdirs();

之後。我的意思是你確定在你的代碼的那一點你的文件+目錄存在？

來源

2014-02-15 16:23:14 donfuxx

我想，我的代碼是小+，因爲它使用openFileOutput()方法從上下文+ MODE_WORLD_READABLE臨時文件時，它不需要任何權限：

ImageView iv = (ImageView)adapter.getmCurrentView(); 
    String fileName = "image.jpg"; 
    iv.setDrawingCacheEnabled(true); 
    Bitmap bitmap = iv.getDrawingCache(); 
    try 
    { 
     FileOutputStream ostream = getActivity().openFileOutput(fileName, Context.MODE_WORLD_READABLE); 
     bitmap.compress(Bitmap.CompressFormat.JPEG, 100, ostream); 
     ostream.close(); 
    } 
    catch (Exception e) 
    { 
     e.printStackTrace(); 
    } 

    Intent share = new Intent(Intent.ACTION_SEND); 
    share.setType("image/*"); 
    share.putExtra(Intent.EXTRA_SUBJECT, "Great photo from Poland!"); 
    share.putExtra(Intent.EXTRA_TEXT, "Hi, I'm sharing with you this great picture!"); 
    share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File(getActivity().getFileStreamPath(fileName).getAbsolutePath()))); 
    startActivity(Intent.createChooser(share,"Share via"));

來源

2014-03-11 22:31:53

好主意。不幸的是，Context.MODE_WORLD_READABLE在API17中已棄用。所以它可能很快會失敗，新的Andrid版本。 – Meier

這不再被支持並生成一個異常。任何其他方式從ImageView創建共享圖像？ – bashan

分享並保存ImageView的圖像？

回答

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